Methyl 4-chloro-3-ethoxythiophene-2-carboxylate CAS 1708401-29-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1708401-29-9 |
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 4-chloro-3-ethoxythiophene-2-carboxylate (CAS 1708401-29-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H9ClO3S. Molecular weight: 220.67 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 5-Chloro-3-propoxythiophene-2-carboxylic acid (CAS 1392233-78-1)
- (2-Chloro-6-(methylsulfonyl)phenyl)methanol (CAS 1549395-22-3)
- 4-Chloro-3-isopropoxythiophene-2-carboxylic acid (CAS 1774902-71-4)
- 5-Chloro-4-isopropoxythiophene-2-carboxylic acid (CAS 1779121-96-8)
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- Methyl 5-chloro-3-ethoxythiophene-2-carboxylate (CAS 181063-66-1)
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Recommended Standards
- 2-Chloroethyl benzenesulfonate (CAS 16670-48-7)
- (3-Methoxyphenyl)methanesulfonyl chloride (CAS 163295-76-9)
- 1-(Chloromethoxy)-4-methanesulfonylbenzene (CAS 1538084-42-2)
- N-((2-bromopyridin-4-yl)methyl)cyclopropanamine (CAS 1289386-62-4)
- 7-Chloro-6-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 1360899-39-3)
- 5-Bromo-2-((4-fluorobenzyl)oxy)benzoic acid (CAS 938243-43-7)
- 4-[5-(4-methoxyphenyl)-3-phenyl-4,5-dihydro-1h-pyrazol-1-yl]-4-oxobutanoic acid (CAS 313404-87-4)
- 2-(Trifluoromethyl)-1,3-oxathiolan-5-one (CAS 79413-31-3)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(quinolin-3-yl)propanoic acid (CAS 1106706-63-1)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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